Heinrich Frey

Heinrich Frey (June 15, 1822 – January 17, 1890) was a German-born Swiss entomologist who studied Lepidoptera.

Here he met Senator Carl Heinrich Georg von Heyden (1793–1866) who introduced him to entomology.

When he returned to Frankfurt am Main in 1839 von Heyden showed him Philipp Christoph Zeller's Attempt at a Classification of the Tineinae which had just appeared in Oken's Isis.

Until this publication, this group of moths had been hopelessly confused and Frey was impressed by Zeller's orderly arrangement.

(An extraordinary professorial chair is one created by a university because of an application from an outside organisation that feels that a certain field is not given enough attention).